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0answers
25 views

Server load spikes after yum update and Laravel installation

The Platform: Centos 6.3 PHP 5.4.30 Apache 2.2.15 mysql Ver 14.14 Distrib 5.5.37, for Linux (x86_64) using readline 5.1 4 CPUs 12 GB RAM 1TB Hard Disk Prefork Settings for Apache <IfModule ...
0
votes
2answers
25 views

Apache Causing High Load on Server

Whenever Apache kills child process to create new ones after the MaxRequestPerChild is satisfied, I see Defunct Apache processes in the ps output. There defunct processes clear by themselves in a ...
-2
votes
0answers
15 views

Best performance with Rabbit MQ Shard Plugin [closed]

What is the best throughput that we are able to achieve using the Shard plugin/exchange in Rabbit MQ? Compared to Direct and X Random Exchange, I get lesser performance with Shard Exchange. What is ...
1
vote
1answer
33 views

High load on a particular time

I am facing one odd problem in one of my remote servers (Centos 6). Its load became high by 09:30 AM and became normal by 09:40. See my SAR -q on 2 days. 09:00:01 PM 4 199 0.95 ...
1
vote
1answer
48 views

Increase bandwidth per connection on a server

Requirement: I am load testing Rabbit MQ by generating a large number of requests/sec to the server (Server config: 8 core, 16GB). To achieve the above, I am generating load from a client machine at ...
1
vote
1answer
106 views

preventing ipmi kernel drivers from loading

I'm trying to prevent the ipmi kernel modules from loading on a server with a SuperMicro X8DTG-D motherboard running Ubuntu 14.04. My motivation for doing so is that the modules sometimes seem to take ...
3
votes
2answers
402 views

Apache 2.4.9 100% CPU load of random workers

I own a t1.micro EC2 instance. After release upgrade of Ubuntu to saucy I got Apache 2.4.6 and I started noticing 100% CPU load like this top - 19:37:58 up 2:55, 2 users, load average: 3.90, 2.90, ...
1
vote
3answers
121 views

Load Balancing - PHP/Mysql [closed]

I have a server which relies heavily on a MYSQL database. Recently, there have been load issues and max mysql connection issues. My idea is to have a primary server with the php code and files and a ...
0
votes
1answer
47 views

Problems with nginx server load rediculous spikes

we are having a problem with the load of our server using nginx and not sure what to do about it. We are running ubuntu 12.04. Any ideas of what is going on and how to fix it? Below is a screenshot of ...
0
votes
1answer
224 views

Configure Apache MPM worker module for 1000+ users

I have youtube proxy site http://playit.pk, the issue is that whenever users increase over 500 at an instant the server gets really slow. I am using MPM Worker module and have tried several configs.. ...
0
votes
0answers
353 views

Load testing HTTPS with Siege (open auth)

I am trying to load test our new website with siege. It is currently behind basic auth. I have edited my .siegerc file to include the right username and password (I've checked many times that it is ...
0
votes
1answer
53 views

What are acceptable failure rates in load testing scenarios

I am doing a report on load testing for a client. I am using a service called blitz IO. He would like to handle 1000 concurrent users at 500ms. Every time I have run a test like this there it has ...
0
votes
0answers
27 views

mpm worker - high server load

i have 10 wordpress site with this plugins : w3 total cache + wordpress seo my server load some time goes up. vps : 1gb ram , 4 cpu 2.6 mpm worker : StartServers 2 ServerLimit ...
0
votes
1answer
40 views

Nginx load balancing based on vhosts

Well, I've a setup with 1 load balancers and 2 backends (with nginx). They are both serving two website, beta.xxx.fr and xxx.fr. I want my load balancer to serve both websites. Have you got any idea ...
0
votes
2answers
38 views

Server load and user activity emulation software [closed]

A couple of years ago i saw a software set, whose purpose was emulating user/client activity and stress testing remote servers (mail, web, etc.). It can be installed under linux, requires a separate ...
0
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1answer
41 views

Off-loading HTTP traffic

Need help in off loading HTTP traffic. My web server is having a lot of traffic resulting in slow response. It is also getting requests on port 80 from various mobile applications too. Traffic from ...
-1
votes
1answer
799 views

Best Apache & MySQL config for 16GB and 8 Cores [closed]

I'm having some trouble with my servers. I'm having a peak and my servers load are very high. I have 3 servers, one for frontend, one for database (mysql) and one for delivery images (no problem with ...
1
vote
2answers
136 views

High Disk I/O on server reboot

A CentOS 5.8 machine has high Disk I/O upon starting up. The processes taking up disk IO are kmirrord, kjournald and pdflush. I have done the performed the following: 1) Mounted the filesystem with ...
0
votes
1answer
524 views

How to view CPU Load on Windows Server 2008 [duplicate]

It's a simple question, really, I'd like to check the CPU Load of my Windows Server 2008 machine. This value gets reported to Zabbix, but I have no clue where Zabbix gets the value from. All I can ...
0
votes
1answer
31 views

How to disable search body in dovecot?

We run mail server of 30k e-mail accounts (Maildir) with dovecot imap server. We suffer from high IO load, especially when a user starts to search large imap folders. Is any way of preventing search ...
0
votes
0answers
45 views

Django, fastcgi, loadbalancing extremely slow

I experience alot of problems with Django and I would be very grateful if you could help me: I run a lighttpd as a loadbalancer with the following settings: $HTTP["host"] =~ "myproject$" { ...
0
votes
0answers
113 views

What would cause temporary error 4010 (node failure) on a MySQL cluster?

We recently set up a new MySQL cluster and are trying to load data from a flat file. But we get the error “Got temporary error 4010 'Node failure caused abort of transaction' from NDBCLUSTER" when we ...
0
votes
0answers
224 views

ksoftirqd causes very high cpu usage - server is sometimes completely unusable

the ksoftirqd process on my root (Ubuntu 12.04 x64 with kernel 3.11.6) causes occasionally a very high usage of the first cpu core (sometimes only 5 minutes, then 30 minutes long, ... it feels just ...
0
votes
1answer
221 views

Ksoftirqd high load

Recently I notice that one ksoftirqd is always in top of my processlist and takes 90% - 100% cpu. PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND ...
1
vote
1answer
65 views

Acceptable linux load - count HT cores?

So the conventional notion of "acceptable load" on a *nix based box is "1.00 minus some overhead (10% give or take) per core". So if we have a 4 core machine, a load of 3.50 would be acceptable. ...
1
vote
1answer
93 views

Beginner at load balancing. How would I load balance multiple servers on different racks?

I was wondering if I had the right idea for load balancing lets say more then 42 servers. Would it be like this: As an example I'm using a performance Load Balancer with 10gbps input and lets say ...
0
votes
4answers
641 views

CentOS 6.4 running Asterisk 11.5 with high load, low CPU/memory/disk IO

I have an Asterisk server doing automated calls and I'm noticing an unexplained high load in it. The server is only running Asterisk. Database and other support applications run in a different ...
0
votes
1answer
89 views

How to setup a load balancing / fail-proof web server under Linux [closed]

the company i work for currently has 2 linux servers running under Debian that are being paid for. One of them currently hosts multiple websites + mail services as well. The other linux currently is ...
0
votes
1answer
408 views

Ubutu/KVM: High iowait on guest nodes, root node fine

Recently one of my boxes has been running quite slowly. It's running Ubuntu 12 LTS and kvm to split the server into several nodes. The box has 2 normal SATA drives using software RAID-1. One of the ...
3
votes
1answer
313 views

Measuring load - %CPU in top is different than %us

When I run TOP on a remote server, I see a very small system utilization (3.8%us). However, for the actual process I am seeing 29.6% of the CPU. Since this server has 8 CPU cores, is the %CPU the ...
0
votes
2answers
102 views

Munin's load plugin does not appear

I just did a fresh install of Munin 2.0.6-4 on a Debian 7.1 server from the debian repositories. The "load" plugin appears as loaded: # munin-node-configure | grep load load | ...
0
votes
1answer
77 views

Images load very slow on Linux server

Since some days images on our website load awfully slow without any changes on the site performed from our end. The images load really slow, but if I then save the image from the website the download ...
0
votes
1answer
59 views

Force Server to Change Load Average

Recently we got a server with Limestone Networks to operate as a worker in our web-cluster. The main infrastructure behind the cluster (being the database and load balancer) are located in Phoenix ...
0
votes
2answers
365 views

Keeping F5 (refresh button) pressed leads to high apache server load

We are running a forum software (Woltlab Burning Board) on our server and found out that if at least two users keep reloading the website very quick (keeping F5 button pressed), the server load goes ...
1
vote
1answer
43 views

Load times quick individually, very slow when put together

I'm running a standard debian apache2 web server. Recently, I've noticed my load times slow down substantially. I've checked exactly which resources are taking a long time to load, and there are 2 or ...
1
vote
1answer
281 views

CPU Usage vs load average [duplicate]

I'm running debian iostat -x Linux 2.6.32-5-amd64 (server56856.uk2net.com) 27/04/13 _x86_64_ (4 CPU) avg-cpu: %user %nice %system %iowait %steal %idle 4.59 0.01 ...
3
votes
3answers
103 views

Running a process within a limited amount of resources, in Linux

Is there a way to run a process (e.g. ls, du, find .. etc) within a strictly limited amount of resources (i.e. cpu, memory, I/O) aside from using nice & ionice, as I didn't find them effective ...
-1
votes
2answers
50 views

server busy threshold? [closed]

i have a server with 512MB RAM running mysql and apache service. I have joomla site inside my server. I want to ask, is there a brief threshold limit of RAM when the server will be stated as busy? ...
-1
votes
1answer
2k views

GlusterFs - high load 90-107% CPU

I try and try and try to performance and fix problem with gluster, i try all. I served on gluster webpages, php files, images etc. I have problem after update from 3.3.0 to 3.3.1. I try 3.4 when i ...
0
votes
1answer
91 views

Where should I configure the Director IP when using LVS NAT load balancing?

The subject is quite self explanatory, I have a load balancer running LVS ldirectord, and the follwoing configuration: # ipvsadm -Ln IP Virtual Server version 1.2.1 (size=4096) Prot ...
0
votes
1answer
67 views

Root process trying to find tcp.log .linux-sniff

I have an Ubuntu 10.04 VPS and I have noticed a root process that is trying to find some files: /usr/bin/find /dev /tmp /lib/ etc/ var ( -name tcp.log -o -name .linux-sniff -o -name sniff10 -o -name ...
0
votes
2answers
414 views

Where is the high load coming from?

Last night I recieved a lot of messages from DirectAdmin saying: load average on your system is 46.86, or some similar number. It comes with a 'top' printout, but all I can tell from that printout is ...
1
vote
0answers
607 views

Why are iptables rules needed for IPVS Load balancer to work?

I have setup a basic load balancer for http and https based on IPVS and linux virtual server. I start and configure ldirectord with the following configuration: virtual = 172.22.9.100:80 real ...
1
vote
0answers
402 views

High load on Linux machine (no IO, no CPU, no Swap)

i am experiencing a high load situation on a linux system, which was PXE booted into a initrd Ramdisk. The system is essentially idle. The system is very responsive (as if no load), yet shows a load ...
2
votes
1answer
123 views

Is there an effective way to monitor the load on each switch?

We have about 200 IP phones in our building and I realize we got more complaint about the phone quality after we switched our internet from 50Mbps to 200Mbps Up/Down. I know there's a possibility ...
-1
votes
1answer
79 views

High resolution load for Linux

The common way to determine load for Linux is via uptime, which processes /proc/loadavg. $ cat /proc/loadavg 0.64 0.68 0.69 1/558 3043 However, this information is the load average for the past ...
2
votes
1answer
81 views

2 identical servers, one slower (higher load) than the other

I have a 3 servers setup, one frontend HAproxy sending requests to 2 backend servers. The backend servers use identical hardware and also identical software (Debian 6.0.6). They are similarly ...
1
vote
1answer
110 views

What would cause an average load of 10-30 (rather than 10-30%) [duplicate]

Possible Duplicate: How to understand the memory usage and load average in linux server I'm not sure whether this would be better titled "Why would Nagios need to monitor a load reaching ...
0
votes
1answer
25 views

Listing all httpd accesses

I have a server with several domains. The server is having a heavy load but I don't know what domain is the guilty one. Is there a way to list on terminal the load per server? or what servers are ...
1
vote
4answers
647 views

Apache causes ridiculous load on server

I have apache2 running on a server. Today there were a lot of http requests (but not unusual) and somehow the load average went up to over 200(!!!). Obviously the website was down (not reachable). ...